Number of casualties unclear after strike on building where hundreds of people were hiding in basement
Authorities in the besieged southern Ukrainian city of Mariupol are clearing the rubble of a theatre hit by a Russian airstrike to search for people who had been sheltering in the basement.
According to local officials, hundreds of people were hiding beneath the theatre, which was designated as a shelter for displaced civilians, including children and elderly people, when it was struck on Wednesday.
